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Subject: [PATCH v3 0/6] GPIO & Hierarchy IRQ support for HiFive Unleashed
Thread-Topic: [PATCH v3 0/6] GPIO & Hierarchy IRQ support for HiFive Unleashed
Thread-Index: AQHVo1U/2ljv661YTECJb4nJUTETbQ==
Date:   Mon, 25 Nov 2019 05:57:41 +0000
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This patch series adds GPIO drivers, DT documentation and DT nodes for
HiFive Unleashed board. The gpio patches are mostly based on Wesley's patch=
.
The patchset also adds hierarchy irq domain support as it is required by th=
is
gpio driver. It also includes the irqdomain patch to introduce
irq_domain_translate_onecell() and irq-nvic driver patch to use this newly
introduced function.

This patchset is based on Linux 5.4-rc6 and tested on HiFive Unleashed boar=
d

Changes:
v3 vs v2:
- Include patch for irq-nvic driver to use irq_domain_translate_onecell
- Remove unnecessary inclusion of header files
- Use a single prefix for all symbols in this driver
- Rename the "enabled" field of struct sifive_gpio to "irq_state"
- Remove unused variables and locking from probe()
- Other minor changes

v2 vs v1:
- Add patch to introduce irq_domain_translate_onecell() and use it in
  the sifive PLIC driver
- Drop the usage of own locks, instead use internal bgpio_locks
- Consistently use regmap for register access throughout the gpio code
- Convert the GPIO DT documentation into a json schema
- Other minor changes based upon feedback received on v1

v1 vs RFC:
Incorporated below changes as suggested by Linus Walleij on RFC version of =
this
patchset[0]
- Dropped PWM patches as they are already merged.
- Include "GPIO_GENERIC" and "REGMAP_MMIO" in Kconfig select option
- Remove unwanted inclusion of header files
- Use regmap MMIO instead of customised sifive_assign_bit()
- Use GPIOLIB_GENERIC and bgpio_init() to set up the accessors
- Use hierarchical irqdomain

[0] https://lore.kernel.org/linux-riscv/20181010123519.RVexDppaPFpIWl7QU_hp=
P8tc5qqWPJgeuLYn0FaGbeQ@z/

Yash Shah (6):
  genirq: introduce irq_domain_translate_onecell
  irqchip: nvic: Use irq_domain_translate_onecell instead of custom func
  irqchip: sifive: Support hierarchy irq domain
  gpio: sifive: Add DT documentation for SiFive GPIO
  gpio: sifive: Add GPIO driver for SiFive SoCs
  riscv: dts: Add DT support for SiFive FU540 GPIO driver

 .../devicetree/bindings/gpio/gpio-sifive.yaml      |  69 ++++++
 arch/riscv/boot/dts/sifive/fu540-c000.dtsi         |  14 +-
 .../riscv/boot/dts/sifive/hifive-unleashed-a00.dts |   4 +
 drivers/gpio/Kconfig                               |   9 +
 drivers/gpio/Makefile                              |   1 +
 drivers/gpio/gpio-sifive.c                         | 252 +++++++++++++++++=
++++
 drivers/irqchip/Kconfig                            |   1 +
 drivers/irqchip/irq-nvic.c                         |  15 +-
 drivers/irqchip/irq-sifive-plic.c                  |  30 ++-
 include/linux/irqdomain.h                          |   5 +
 kernel/irq/irqdomain.c                             |  17 ++
 11 files changed, 399 insertions(+), 18 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/gpio/gpio-sifive.yaml
 create mode 100644 drivers/gpio/gpio-sifive.c

--=20
2.7.4